Preheat the oven to 200C/400F/Gas Mark 6.
Prick the potatoes a couple of times then place onto a nonstick baking tray. Add some herbs and drizzle each potato with some olive oil. Season with some salt and pepper
Place the baking tray into the oven and cook for 45-60 minutes, the potatoes should be tender through.
In the meantime, combine the sour cream and shallots in a bowl.
Cut the potatoes across the top and add the sour cream, parma ham, tomato pesto and season with salt and pepper.
Garnish with some salad greens.